Observer TSTAT0201CW Owner's Manual page 11

An override time will be displayed on the right side of the
screen. You can change the override time in 15-minute
increments by pressing the arrows below the time. When you
have completed your changes, press DONE.
NOTE: If the schedule is already set to HOLD or HOLD UNTIL,
the Until option will not be shown on this screen.
Cooling
To change the cooling set point, press COOL TO; then use the
arrow buttons to set the desired temperature.
11
616 02 1019 00